Fix CompositorResizeLock to do something.

ui/compositor/test/fake_compositor_lock.cc

Index: ui/compositor/test/fake_compositor_lock.cc
diff --git a/ui/compositor/test/fake_compositor_lock.cc b/ui/compositor/test/fake_compositor_lock.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b0f673c0ebd2ea1e8697064e7286d1894a26ba42
--- /dev/null
+++ b/ui/compositor/test/fake_compositor_lock.cc
@@ -0,0 +1,13 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ui/compositor/test/fake_compositor_lock.h"
+
+namespace ui {
+
+FakeCompositorLock::FakeCompositorLock(CompositorLockClient* client,
+                                       CompositorLockDelegate* delegate)
+    : CompositorLock(client, delegate) {}
+
+}  // namespace